Chipboard Screws 4x40 mm Partial Thread Zinc Plated Countersunk Torx TX20 – 200 Pieces

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Description

High-Quality Chipboard Screws for Strong Wood-to-Wood Connections

These 4.0 × 40 mm partial thread chipboard screws are ideal for fastening wood materials such as chipboard, MDF, OSB and solid timber. The zinc-plated coating provides corrosion resistance in dry environments, while the Torx TX20 drive ensures excellent grip during installation. The countersunk head allows the screw to sit flush in the wood, resulting in a clean and professional finish.

Why Choose These Chipboard Screws?

✔ Suitable for various wood types — ideal for indoor constructions such as joists, framework and battens
✔ Partial thread design — pulls two wooden parts tightly together for a secure connection
✔ Torx drive (TX20) — prevents cam-out and enables more efficient installation
✔ Zinc-plated coating — protects against rust in indoor applications
✔ 200 pieces per pack — ideal for larger projects and professional use

Applications

These screws are highly suitable for:

Wood-to-wood constructions
Furniture assembly (panels and frames)
Framework and batten fastening
OSB, MDF or chipboard connections
Interior finishing and cladding

They are designed for situations where two wooden components must be firmly and securely joined.

Benefits of Partial Thread Chipboard Screws

Unlike full thread screws — which have thread along the entire length — this model features thread only on the lower section, which:

✔ Provides stronger clamping force between two parts
✔ Reduces the risk of splitting when used correctly
✔ Enables more efficient installation

Installation and Mounting Advice

For best results:

Use a Torx TX20 bit for optimal grip
Pre-drilling is usually not required in softwood
In hardwood, a small pilot hole helps prevent splitting
Drive the screws steadily to avoid material damage

Tip: Check our category for screwdriver bits and holders to select the correct bit size and quality.

Why Order These Chipboard Screws from EnergyBy?

✔ Directly available from stock
✔ Competitive price per pack (200 pieces)
✔ Clear and complete product specifications per size
✔ Fast and reliable delivery
✔ Matching Torx bits and fastening materials available for immediate purchase

This way, you not only order the right chipboard screws, but also the necessary tools for efficient installation.

Specifications

Article number	306.40040.1022
EAN nummer	8712543051440
Finish	Zincplated
Thread type	Partial thread
Head shape	Countersunk head
Brand	White label
Model	chipboard screw partial thread
Length	40 mm
Pack	200
Connection	TX-20
Material	steel zincplated
Certification	none
Diameter	4.0 mm
Collecties 2	screws

Frequently Asked Questions

What Torx bit is required for 4x40 mm screws?

These screws require a Torx TX20 bit for proper installation. Using the correct bit prevents cam-out and ensures efficient torque transfer.

Are these screws strong enough for structural work?

These screws are suitable for light structural applications such as framework and battens. For heavy load-bearing structures, larger diameters or specialized structural screws may be required.

What is the advantage of a countersunk head?

The countersunk head allows the screw to sit flush with the surface of the wood. This provides a clean finish and prevents protruding screw heads in visible applications.

Do I need to pre-drill?

Pre-drilling is usually not required in softwood. In hardwood or MDF, pre-drilling is recommended to reduce splitting and improve precision.

What are 4x40 mm chipboard screws used for?

They are ideal for fixing 18–22 mm boards to wooden framework, commonly used for MDF, OSB, chipboard and solid timber in indoor applications.

Is 4x40 mm suitable for 18 mm boards?

Yes. 4x40 mm partial thread screws are commonly used for fixing OSB boards to wooden frames, provided correct spacing and installation methods are followed.